diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index f0eaa8d..0ba11f3 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -248,7 +248,7 @@
   <component name="PropertiesComponent">
     <property name="WebServerToolWindowFactoryState" value="false" />
     <property name="aspect.path.notification.shown" value="true" />
-    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588412333754" />
+    <property name="com.android.tools.idea.instantapp.provision.ProvisionBeforeRunTaskProvider.myTimeStamp" value="1588412501852" />
     <property name="go.gopath.indexing.explicitly.defined" value="true" />
     <property name="nodejs_interpreter_path.stuck_in_default_project" value="undefined stuck path" />
     <property name="nodejs_npm_path_reset_for_default_project" value="true" />
diff --git a/serve.py b/serve.py
index ad28763..ab61726 100644
--- a/serve.py
+++ b/serve.py
@@ -93,6 +93,7 @@ def train_models(job):
 	# transform data to be supervised learning
 	lag = 4
 	supervised = timeseries_to_supervised(diff_values, lag)
+	print(supervised)
 	supervised_values = supervised.values
 
 	batch_size = 32
@@ -127,7 +128,7 @@ def train_models(job):
 
 
 def predict(job, seq):
-	if job not in models:
+	if job not in models or 'model' not in models[job]:
 		return -1, False
 
 	# load dataset
@@ -151,6 +152,7 @@ def predict(job, seq):
 	# transform data to be supervised learning
 	lag = 4
 	supervised = timeseries_to_supervised(diff_values, lag)
+	print(type(supervised))
 	print(supervised)
 	supervised_values = supervised.values[batch_size:]